Finding the Fourth Proportional to 418,683.94, 627,741.63 and 213,013.09
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Solution
The fourth proportional to 418,683.94, 627,741.63 and 213,013.09 is: 319,375.00
Step by Step Solution
- Step 1: Write the proportion equation
418,683.94 : 627,741.63 = 213,013.09 : x - Step 2: Convert to fraction form
418,683.94/627,741.63 = 213,013.09/x - Step 3: Cross multiply
418,683.94x = 627,741.63 × 213,013.09 - Step 4: Simplify right side
418,683.94x = 133,717,184,327.94 - Step 5: Solve for x
x = 133,717,184,327.94/418,683.94 - Step 6: Final answer
x = 319,375.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.